2024
HEXIM1 Regulates Early Erythropoiesis and Participates in Multiple Complexes in Erythroid Cells
Rahman N, Abid D, Lv X, Murphy K, Getman M, McGrath K, Gallagher P, Narla M, Blanc L, Palis J, Mello S, Steiner L. HEXIM1 Regulates Early Erythropoiesis and Participates in Multiple Complexes in Erythroid Cells. Blood 2024, 144: 536. DOI: 10.1182/blood-2024-209259.Peer-Reviewed Original ResearchRNA polymerase IIErythroid gene expressionGene expressionTerminal erythroid maturationEarly erythropoiesisErythroid cellsErythroid maturationRegulation of gene expressionProgenitor cellsImpaired erythroid differentiationRNAPII pausingGenomic contextPolymerase IIRepress transcriptionSteady-state erythropoiesisErythroid progenitor cellsCD34+ HSPCsRegulatory domainBinding partnersErythropoiesis in vivoBlood cell countColony-forming cellsLow red blood cell countSubnuclear bodiesErythroid progenitor differentiation
2021
Regulation of RNA polymerase II activity is essential for terminal erythroid maturation
Murphy ZC, Murphy K, Myers J, Getman M, Couch T, Schulz VP, Lezon-Geyda K, Palumbo C, Yan H, Mohandas N, Gallagher PG, Steiner LA. Regulation of RNA polymerase II activity is essential for terminal erythroid maturation. Blood 2021, 138: 1740-1756. PMID: 34075391, PMCID: PMC8569412, DOI: 10.1182/blood.2020009903.Peer-Reviewed Original ResearchConceptsRNA polymerase IIRNA polymerase II activityTerminal erythroid maturationPolymerase II activityPolymerase IIErythroid maturationHuman erythroblastsGene expressionTerminal maturationII activityStage-specific regulationHistone posttranslational modificationsTransposase-accessible chromatinErythroid-specific genesAccumulation of heterochromatinHigh-throughput sequencingLevel of transcriptionLate-stage erythroblastsEssential biologic processesAccessible chromatinHistone marksTranscription elongationChromatin structureTranscriptional repressionChromatin immunoprecipitation